scholarly journals Biodiversity of insects associated with safflower (Carthamus tinctorius) crop in Gachsaran, Iran

2015 ◽  
Vol 47 (1) ◽  
pp. 26 ◽  
Author(s):  
K. Saeidi ◽  
S. Mirfakhraei ◽  
F. Mehrkhou ◽  
O. Valizadegan
Keyword(s):  
Agricultural Research ◽  
Carthamus Tinctorius ◽  
Research Station ◽  
Susceptible Host ◽  
Beneficial Insects ◽  
Agricultural Research Station ◽  
Significant Difference ◽  
The Family ◽  
The Mean

The present research conducted to see the biodiversity of insects in warm and cool areas from March to April in 2009 at the Gachsaran Agricultural Research Station. A total number of 4261 specimens, which were identified into 31 families and 92 species. Out of total 31 families collected, 10 families were pests, 2 families belongs to predators and beneficial insects and 7 families belongs to parasitoids and beneficial insects and finally, 12 families of insects are saprophage and polyphagous. There was no significant difference (P>0.05) in the number of insects collected between months. The mean number of insects collected in the month of March, April and May was 34.7, 30.7 and 36.2 respectively. The Basht area is most susceptible host for insects (37.9), while the Gachsaran and Lishter areas is less susceptible (33.5) and (28.4) so both sites not differ significantly in the population of insects. The family Coccinellidae had more population in the Gachsaran-safflower zone (98.3) than the Basht-safflower zone (54.6) and it was significantly similar to the family cicadellidae. Similarly, different families like Aphididae (98.0), Cicadellidae (74), Thripidae (50.0), Curculionidae (26.6), Noctuidae (25.0) and Torymidae (27.3) had higher population in the Gachsaran-safflower zone than in the Basht-safflower area with means of 92.3, 63.0, 42.6, 21.0, 21.6 and 19.3 respectively. Also the families like Nymphalide, Pieridae, Lygaeidae, Papilionidae, Miridae, Pentatomidae, Reduviidae, Geometridae, Gryllotalpidae, Mantidae, Acrididae, Saturnidae and Anthocoridae had mean population of 12.6, 7.4, 12.0, 4.1, 4.4, 8.6, 1.9, 0.5, 7.5, 2.4, 11.3, 3.3 and 8.9.

scholarly journals Effects of planting material and earthing-up on yield and yield contributing attributes of Mukhi Kachu

1970 ◽  
Vol 34 (2) ◽  
pp. 253-267 ◽  
Author(s):  
SM Faisal ◽  
MA Salam ◽  
MS Islam ◽  
MI Hossain
Keyword(s):  
Key Words ◽  
Agricultural Research ◽  
Proper Time ◽  
Research Station ◽  
Agricultural Research Station ◽  
Planting Material ◽  
Significant Difference ◽  
Planting Materials

An investigation was carried out at Agricultural Research Station, Pahartali, Chittagong during February to August 2002 to select suitable size of planting material and proper time of earthing-up to obtain higher yield of Mukhi Kachu. Three planting materials, primary corm (40g), half cut corm (20g), and secondary corm (10g) and four times of earthing-up, 1 month, 2 months, 3 months, and 4 months after planting were used. Different planting materials showed significant difference on weight of total corms/plot, weight of total cormels/plot and cormel yield. Different times of earthing-up showed significant effects on the parameters studied except no. of cormels/hill and weight of cormels/hill. The highest (3.71 t/ha) corm yield was obtained when primary corms were planted and earthing-up was done three months after planting. The combination of P1E ( primary corm x 3 months after planting) gave the highest (8.37 t/ha) cormel yield. Key Words: Mukhi Kachu; corm; cormel; planting material; earthing-up.  DOI: 10.3329/bjar.v34i2.5798Bangladesh J. Agril. Res. 34(2): 263-267, June 2009

scholarly journals Trials on the Timing of Chemical Control of Lentil weevil, Bruchus lentis Frӧlich (Coleoptera: Chrysomelidae: Bruchinae) in Lentil Field in Gachsaran Region (Iran)

2017 ◽  
Vol 49 (3) ◽  
Author(s):  
K. Saeidi ◽  
S. Mirfakhraie
Keyword(s):  
Chemical Control ◽  
Agricultural Research ◽  
Block Design ◽  
Early Flowering ◽  
Economic Losses ◽  
Research Station ◽  
Three Samples ◽  
Significant Difference ◽  
The Mean ◽  
Spray Treatment

The lentil weevil, Bruchus lentis Frӧlich, (Coleoptera: Chrysomelidae: Bruchinae) is the most serious pest of lentil in Iran. Economic losses due to this pest reach up to 40% of the lentil crop. Over a two-year study (2012 and 2013) in Agricultural Research Station of Gachsaran Region, best timing of chemical control of B. lentis was determined. A field experiment with cultivation of lentil Sina variety Lens culinaris Medik was conducted in a randomized complete block design with five treatments and three replications. The treatments consisted of spraying four times (respectively, during the early flowering, 10 days after the first spraying, 10 days after the second spraying; 10 days after the third spraying) and control (without spraying). For the spraying from Endosulfan insecticide EC50% at ratio one liter per hectare was used. Three samples were taken from the pods and totally 150 pods from each replicate for contaminations of seeds were investigated. After the determination of the percent of seeds contamination, results were statistically analysed. Based on the results obtained, first spray treatment, with the mean contamination of 15.45% and second spray treatment with the mean contamination of 12.25% had the highest impact on reducing contamination lentil seeds to B. lentis and between them there was no statistically significant difference and were in one group. Therefore, spraying one time during the early flowering until 15 days after it was the best time to control of B. lentis.

Effect of intercrops on growth and yield of turmeric (Curcuma longa L.)

2017 ◽  
Vol 26 (1) ◽  
pp. 51
Author(s):  
R Chitra, P Hemalatha
Keyword(s):  
Short Duration ◽  
Agricultural Research ◽  
Curcuma Longa ◽  
Growth And Yield ◽  
Research Station ◽  
Initial Growth ◽  
Agricultural Research Station

The initial growth of turmeric is rather slow and takes about 4-5 months to cover the inter space. Therefore, the available space between the rows of turmeric could be effectively utilized by growing short duration crops like, vegetables, cereals etc. Hence, it is worthwhile to explore the possibilities of growing compatible crops with turmeric. With this background the experiment on effect of intercrops on growth and yield of turmeric was conducted at Agricultural Research Station, Bhavanisagar. Among the different intercrops, turmeric with cowpea recorded the maximum fresh rhizome yield per hectare (30.78 t ha-1) while turmeric + bhendi registered the maximum B:C ratio (2.68:1). Monocropping of turmeric recorded the lowest B:C ratio (1.67:1) among all the treatments.  

Influence of sowing dates on the incidence of powdery mildew of chilli

2017 ◽  
Vol 4 (2) ◽  
Author(s):  
SUDHEENDRA A. ASHTAPUTRE
Keyword(s):  
Powdery Mildew ◽  
Field Experiment ◽  
Disease Severity ◽  
Agricultural Research ◽  
Time Interval ◽  
Research Station ◽  
Inoculum Potential ◽  
Weather Factors ◽  
Agricultural Research Station ◽  
Sowing Dates

A field experiment was conducted during kharif, 2005 at Agricultural Research station, Devihosur, Haveri, Karnataka to assess the progress of powdery mildew at different time interval of sowing dates. Totally 20 different dates of sowings were imposed in the experiment at an interval of 10 days. The crop sown on last week of May to mid of June recorded minimum disease severity compared to rest of the date of sowings. This clearly indicated that crop sown during this period suffers less, which may be due to low inoculum potential, whereas late sown crop suffers more because of the readily available inoculum in the early sown crops. Low disease severity in last week of May to mid of June sowing may be attributed to the non-congenial weather factors for the development of the disease.

scholarly journals Validation of Target Yield based Fertilizer Prescription for Rabi Castor in Alfisol

2020 ◽  
pp. 166-173
Author(s):  
Kasthuri Rajamani ◽  
A. Madhavi ◽  
T. Srijaya ◽  
P. Surendra Babu ◽  
Pradip Dey
Keyword(s):  
Field Experiments ◽  
Agricultural Research ◽  
Organic Fertilizers ◽  
Research Station ◽  
Agricultural Research Station ◽  
Target Yield ◽  
Test Verification ◽  
Absolute Control ◽  
Inorganic And Organic

Field experiments were conducted from 2015-16 to 2017-18 on a Typic Rhodustalfs (Alfisol) soils of Telangana at Regional Agricultural Research Station, Palem, Nagarkurnool, Southern Telangana Zone, India to validate targeted yield based fertilizer prescription equations which developed for hybrid castor by adopting eight treatments viz., Blanket recommendation (100% RDF:80:40:30 kg N, P2O5 and K2O ha-1), Blanket+5 t ha-1 of vermin-compost (VC), STCR-Target yield with NPK alone at 25q ha-1, STCR-Target yield with IPNS at 25q ha-1, STCR-Target yield with NPK alone at 30q ha-1, STCR-Target yield with IPNS at 30q ha-1, Farmer’s practice (40:20:0kg N, P2O5 and K2O ha-1) and Absolute control (without inorganic and organic fertilizers). The findings of these test verification trials clearly revealed that the percent achievement of the aimed yield target was within + 10 percent variation confirming the validity of the equations. Using STCR-NPK@25 and 30q ha-1 recorded significantly higher seed (20.74 and 22.30q ha-1) and stalk (24.63 and 26.36q ha-1) yield over blanket recommendation (19.40 and 23.13 q ha-1), while STCR-IPNS at 25 and 30 q ha-1recorde relatively higher seed (20.98 and 22.69q ha-1) and stalk (25.88 and 27.13q ha-1) yield over STCR-NPK alone treatments. The magnitude of built-up was higher with STCR-IPNS treatments as compared to STCR-NPK alone, blanket recommendations, farmer’s practice and absolute control.

Control of barnyard grass in rice in the Murrumbidgee Irrigation Area using 3,4,dichloropropinionanilide

1963 ◽  
Vol 3 (11) ◽  
pp. 333 ◽  
Author(s):  
EB Boerema
Keyword(s):  
Agricultural Research ◽  
Total Yield ◽  
Research Station ◽  
Barnyard Grass ◽  
Irrigation Area ◽  
Leaf Stage ◽  
Significant Difference ◽  
Excellent Control ◽  
First 90 Days ◽  
Panicle Weight

Barnyard grass (Echinochloa spp.) is an extremely effective competitor with rice. In two experiments at the Yanco Agricultural Research Station, rice severely infested with barnyard grass produced approximately' 50 per cent less tillers per sq. ft. 90 days after sowing, approximately 50 per cent less panicles at harvest, and 33-55 per cent less yield than rice treated with 3,4-dichloropropionanilide ( DPA ) to control barnyard grass. In untreated plots, barnyard grass absorbed over 60 per cent of the total nitrogen taken up from the s oil by both the weed and rice during the first 90 days of growth. DPA applied at a rate of 4 lb an acre gave excellent control of barnyard grass. In the first experiment, when the grass was in the 1-3 leaf stage, application two or ,four days before irrigation resulted in much less weed surviving than when applied three hours before irrigation. This irrigation was followed by permanent flooding six day later. In the second experiment the grass was in the 4-7 leaf stage. There was no significant difference in kill of weeds between DPA applied at different times and rates. Survival of weeds in all treated plots in both experiments was significantly less than in the untreated plots. Treatment with DPA increased the yield significantly in all cases. Although the amount of grass surviving 90 days after sowing varied somewhat with different times of DPA application, the total yield, number of panicles per sq. ft., and panicle weight of rice, for any of these treatments were not significantly different.

scholarly journals Effect of mulching method and planting time on the yield and yield attributes of tomato in hill slope

1970 ◽  
Vol 34 (2) ◽  
pp. 227-232
Author(s):  
ZA Firoz ◽  
MM Zaman ◽  
MS Uddin ◽  
MH Akand
Keyword(s):  
Key Words ◽  
Agricultural Research ◽  
Combined Effect ◽  
Research Station ◽  
Yield Attributes ◽  
Planting Time ◽  
Agricultural Research Station ◽  
Tomato Yield ◽  
Hill Slope ◽  
The Hill

An experiment was conducted at the Hill Agricultural Research Station, Khagrachari from September 2002 to February 2003 to find out the effect of mulching method (Mulching one month before planting, mulching just after planting and no mulching) and planting times (01 October, 16 October and 01 November) on the yield and yield attributes of tomato in hill slope. The highest yield (21.43 t/ha) was obtained from plant where mulch was given one month before planting. Among three planting times, the highest yield (15.27 t/ha) was obtained from 01 October planting. In case of combined effect, mulching one month before planting with 01 October planting produced the highest yield (28.06 t/ha) of tomato in hill slope. Key Words: Mulching; planting time; tomato yield; hill slope.  DOI: 10.3329/bjar.v34i2.5793Bangladesh J. Agril. Res. 34(2): 227-232, June 2009

scholarly journals Evaluation of Growth and Carcass Characteristics of Broiler Chickens (Cobb 500) Feed on Different Level of Organic Acids Inclusion in Diet at Parwanipur

2019 ◽  
Vol 36 ◽  
pp. 137-147
Author(s):  
A. K. Jha ◽  
Md. H. Azad ◽  
Md.S. N. Ali ◽  
P. Alam ◽  
N. Sheikh ◽  
...  
Keyword(s):  
Weight Gain ◽  
Organic Acids ◽  
Formic Acid ◽  
Broiler Chickens ◽  
Agricultural Research ◽  
Body Weight Gain ◽  
Control Group ◽  
Research Station ◽  
Body Parts ◽  
Significant Difference

 An experiment was carried out to evaluate the effect of different level of organic acids on productive traits, carcass yields and body parts (Thigh, Back, Neck, wings and Breast) of broiler chicken. This experiment was conducted at Regional Agricultural Research Station, Parwanipur, Bara for 41 days to test the effect of organic acids inclusion in broiler feed and its effect on growth performance and carcass study. Altogether 225 day old Cobb-500 broiler birds were procured from Shivam Hatchery, Birgung and divided into 5 treatments with 3 replications (15 birds in each replication) by using completely randomized design. Concentrate feed was purchased from Posak Feed industry, Birgung. Control group (T1) was feed without organic acid inclusion and whereas T2, T3, T4 and T5 groups were fed concentrate mixture mixed with different combination of organic acids @ 400ml/ per 100 kg feed, respectively. Experimental birds were provided adlib amount of grower feed (B1) for 21 days and that after finisher feed (B3) for 20 days and had easily access to drinking water. Feed intake was recorded daily and body weight gain was measured in 7 days interval. Experiment revealed that highest weight gain was observed in T2 (2.6 kg) followed by T3 (2.5) where combination of organic acids were formic acid 65% + propionic acid 35% and formic acid 65% and citric acid 35%, respectively, however, it was not significant among diet groups. From every treatment group each birds were selected for carcass and body parts study. The study showed significant difference (P<0.5) in carcass quantity and body parts of the birds between the treatment groups. The dressing percentage of T1, T2, T3, T4 and T5 were 68.96%, 67.87%, 70.38%, 69.88% and 69.67% respectively. Experiment suggested that further study should be carried out to precise the appropriate level of organic acids inclusion and higher cost benefit ratio.

Bartlett's Work on Agricultural Experiments

1975 ◽  
Vol 12 (S1) ◽  
pp. 9-16
Author(s):  
W. G. Cochran
Keyword(s):  
Treatment Effects ◽  
Agricultural Research ◽  
Experimental Designs ◽  
Research Station ◽  
Agricultural Research Station ◽  
Efficient Detection ◽  
Selection Of

A selection of Bartlett's work as an operating statistician in his first position as statistician 1934–38 at the I.C.I. agricultural research station at Jealott's Hill, Berks., is described. This illustrates some of the methods he used for the efficient detection of treatment effects and for an appraisal of the suitability of the experimental designs that were being used.

Insect pest complex of rose at Regional Agricultural Research Station, Ambalavayal, Wayanad

2017 ◽  
pp. 39-44
Author(s):  
R. Smitha ◽  
P. Rajendran ◽  
P.T. Sandhya ◽  
V.S. Aparna ◽  
P.C. Rajees
Keyword(s):  
Agricultural Research ◽  
Insect Pest ◽  
Research Station ◽  
Agricultural Research Station
Sign in / Sign up

Export Citation Format

Share Document